What was found
AIRCRAFT INVOLVED IN AN ACCIDENT BECAUSE OF AN ENGINE FAILURE. THE ENGINE WAS DISASSEMBLED BY THE MANUFACTURER WITH THE FOLLOWING FINDINGS. THE WRONG PART NUMBER CRANKSHAFT WAS INSTALLED IN THE ENGINE. THE SLUDGE TUBES, P/N 71577, WERE NOT INSTALLED ON THE CRANK PINS. THE SLUDGE TUBES AID IN THE LUBRICATION OF THE CRANKSHAFT AND RODS. IN THE CASE OF THIS ENGINE, THE NR 2 ROD CAP FAILED CAUSING THE ROD TO BREAK THROUGH THE CASE RESULTING IN THE ENGINE FAILING. (X)